A St. Mary’s teacher will contest charges filed in Baltimore that he sexually solicited a police detective posing as a child and unlawfully displayed obscene material, his lawyer said this week, as county school officials review the suspended teacher’s employment.

Arturo Vicente Leon II, 29, of California was released last Saturday on $25,000 bond after his arrest in St. Mary’s on the charging papers alleging he engaged in sexually explicit conversations from last July until March of this year on an online chat website, with the Baltimore city detective who presented himself as a 14-year-old girl.

The detective obtained grand jury subpoenas to find the identity of the suspect, reviewing records of Yahoo and Metrocast cable that led to a police visit last month with Leon’s roommate in California’s Wildewood community.

The roommate called Leon, who soon arrived at the residence and “agreed he chatted about the chats” described in court papers, initialed a web-cam picture of himself and a nude picture of himself, and identified himself as a teacher at Esperanza Middle School in Lexington Park, according to charging papers filed by Baltimore city police detective Donald K. Shores.

“Leon stated that he never had anything happen at school like this,” the detective wrote in a charges application, adding that the suspect handed over two laptop computers to the investigator.

Thomas C. Morrow, Leon’s lawyer, said Wednesday from his office in Baltimore that his client will contest the charges in court.

“I’ve seen no evidence whatsoever of any solicitation,” Morrow said.

Leon taught social studies at Esperanza, and coached sports, including Great Mills High School’s cross country teams, according to web pages of the county’s public schools. He also was the head coach of the school’s boys lacrosse team.

“Right now, he is on paid administrative leave,” Greg Nourse, assistant superintendent of fiscal services and human resources for the school system, said Wednesday afternoon.

Nourse said school administrators are in the midst of an internal investigation and the school board and superintendent are planning to make a decision this Friday about Leon’s status with the school system.